Home / 15,307.48-21,125.34-9,337.52

Finding the Fourth Proportional to 15,307.48, 21,125.34 and 9,337.52

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Solution

The fourth proportional to 15,307.48, 21,125.34 and 9,337.52 is: 12,886.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,307.48 : 21,125.34 = 9,337.52 : x
  2. Step 2: Convert to fraction form
    15,307.48/21,125.34 = 9,337.52/x
  3. Step 3: Cross multiply
    15,307.48x = 21,125.34 × 9,337.52
  4. Step 4: Simplify right side
    15,307.48x = 197,258,284.76
  5. Step 5: Solve for x
    x = 197,258,284.76/15,307.48
  6. Step 6: Final answer
    x = 12,886.40

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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.