Home / 10,673.28-14,712.40-9,815.04

Finding the Fourth Proportional to 10,673.28, 14,712.40 and 9,815.04

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Solution

The fourth proportional to 10,673.28, 14,712.40 and 9,815.04 is: 13,529.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,673.28 : 14,712.40 = 9,815.04 : x
  2. Step 2: Convert to fraction form
    10,673.28/14,712.40 = 9,815.04/x
  3. Step 3: Cross multiply
    10,673.28x = 14,712.40 × 9,815.04
  4. Step 4: Simplify right side
    10,673.28x = 144,402,794.50
  5. Step 5: Solve for x
    x = 144,402,794.50/10,673.28
  6. Step 6: Final answer
    x = 13,529.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.