Home / 12,666.60-19,000.70-4,875.40

Finding the Fourth Proportional to 12,666.60, 19,000.70 and 4,875.40

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Solution

The fourth proportional to 12,666.60, 19,000.70 and 4,875.40 is: 7,313.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.60 : 19,000.70 = 4,875.40 : x
  2. Step 2: Convert to fraction form
    12,666.60/19,000.70 = 4,875.40/x
  3. Step 3: Cross multiply
    12,666.60x = 19,000.70 × 4,875.40
  4. Step 4: Simplify right side
    12,666.60x = 92,636,012.78
  5. Step 5: Solve for x
    x = 92,636,012.78/12,666.60
  6. Step 6: Final answer
    x = 7,313.41

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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.