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Finding the Fourth Proportional to 19,585.99, 29,384.04 and 8,490.10

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Solution

The fourth proportional to 19,585.99, 29,384.04 and 8,490.10 is: 12,737.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,585.99 : 29,384.04 = 8,490.10 : x
  2. Step 2: Convert to fraction form
    19,585.99/29,384.04 = 8,490.10/x
  3. Step 3: Cross multiply
    19,585.99x = 29,384.04 × 8,490.10
  4. Step 4: Simplify right side
    19,585.99x = 249,473,438.00
  5. Step 5: Solve for x
    x = 249,473,438.00/19,585.99
  6. Step 6: Final answer
    x = 12,737.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.