Home / 9,918.30-14,877.45-9,140.70

Finding the Fourth Proportional to 9,918.30, 14,877.45 and 9,140.70

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Solution

The fourth proportional to 9,918.30, 14,877.45 and 9,140.70 is: 13,711.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.30 : 14,877.45 = 9,140.70 : x
  2. Step 2: Convert to fraction form
    9,918.30/14,877.45 = 9,140.70/x
  3. Step 3: Cross multiply
    9,918.30x = 14,877.45 × 9,140.70
  4. Step 4: Simplify right side
    9,918.30x = 135,990,307.22
  5. Step 5: Solve for x
    x = 135,990,307.22/9,918.30
  6. Step 6: Final answer
    x = 13,711.05

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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.