Home / 19,426.60-29,139.90-6,288.40

Finding the Fourth Proportional to 19,426.60, 29,139.90 and 6,288.40

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Solution

The fourth proportional to 19,426.60, 29,139.90 and 6,288.40 is: 9,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,426.60 : 29,139.90 = 6,288.40 : x
  2. Step 2: Convert to fraction form
    19,426.60/29,139.90 = 6,288.40/x
  3. Step 3: Cross multiply
    19,426.60x = 29,139.90 × 6,288.40
  4. Step 4: Simplify right side
    19,426.60x = 183,243,347.16
  5. Step 5: Solve for x
    x = 183,243,347.16/19,426.60
  6. Step 6: Final answer
    x = 9,432.60

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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.