Home / 10,419.30-14,378.58-9,572.06

Finding the Fourth Proportional to 10,419.30, 14,378.58 and 9,572.06

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Solution

The fourth proportional to 10,419.30, 14,378.58 and 9,572.06 is: 13,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.30 : 14,378.58 = 9,572.06 : x
  2. Step 2: Convert to fraction form
    10,419.30/14,378.58 = 9,572.06/x
  3. Step 3: Cross multiply
    10,419.30x = 14,378.58 × 9,572.06
  4. Step 4: Simplify right side
    10,419.30x = 137,632,666.42
  5. Step 5: Solve for x
    x = 137,632,666.42/10,419.30
  6. Step 6: Final answer
    x = 13,209.40

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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.