Home / 15,587.18-21,510.26-9,216.06

Finding the Fourth Proportional to 15,587.18, 21,510.26 and 9,216.06

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Solution

The fourth proportional to 15,587.18, 21,510.26 and 9,216.06 is: 12,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,587.18 : 21,510.26 = 9,216.06 : x
  2. Step 2: Convert to fraction form
    15,587.18/21,510.26 = 9,216.06/x
  3. Step 3: Cross multiply
    15,587.18x = 21,510.26 × 9,216.06
  4. Step 4: Simplify right side
    15,587.18x = 198,239,846.78
  5. Step 5: Solve for x
    x = 198,239,846.78/15,587.18
  6. Step 6: Final answer
    x = 12,718.13

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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.