Home / 10,454.05-15,702.95-8,813.80

Finding the Fourth Proportional to 10,454.05, 15,702.95 and 8,813.80

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Solution

The fourth proportional to 10,454.05, 15,702.95 and 8,813.80 is: 13,239.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,454.05 : 15,702.95 = 8,813.80 : x
  2. Step 2: Convert to fraction form
    10,454.05/15,702.95 = 8,813.80/x
  3. Step 3: Cross multiply
    10,454.05x = 15,702.95 × 8,813.80
  4. Step 4: Simplify right side
    10,454.05x = 138,402,660.71
  5. Step 5: Solve for x
    x = 138,402,660.71/10,454.05
  6. Step 6: Final answer
    x = 13,239.14

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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.