Home / 15,746.40-21,711.60-9,456.48

Finding the Fourth Proportional to 15,746.40, 21,711.60 and 9,456.48

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Solution

The fourth proportional to 15,746.40, 21,711.60 and 9,456.48 is: 13,038.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,746.40 : 21,711.60 = 9,456.48 : x
  2. Step 2: Convert to fraction form
    15,746.40/21,711.60 = 9,456.48/x
  3. Step 3: Cross multiply
    15,746.40x = 21,711.60 × 9,456.48
  4. Step 4: Simplify right side
    15,746.40x = 205,315,311.17
  5. Step 5: Solve for x
    x = 205,315,311.17/15,746.40
  6. Step 6: Final answer
    x = 13,038.87

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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.