Home / 10,521.20-15,838.80-9,602.66

Finding the Fourth Proportional to 10,521.20, 15,838.80 and 9,602.66

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Solution

The fourth proportional to 10,521.20, 15,838.80 and 9,602.66 is: 14,456.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521.20 : 15,838.80 = 9,602.66 : x
  2. Step 2: Convert to fraction form
    10,521.20/15,838.80 = 9,602.66/x
  3. Step 3: Cross multiply
    10,521.20x = 15,838.80 × 9,602.66
  4. Step 4: Simplify right side
    10,521.20x = 152,094,611.21
  5. Step 5: Solve for x
    x = 152,094,611.21/10,521.20
  6. Step 6: Final answer
    x = 14,456.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.