Home / 15,510.70-21,404.46-8,437.24

Finding the Fourth Proportional to 15,510.70, 21,404.46 and 8,437.24

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Solution

The fourth proportional to 15,510.70, 21,404.46 and 8,437.24 is: 11,643.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,510.70 : 21,404.46 = 8,437.24 : x
  2. Step 2: Convert to fraction form
    15,510.70/21,404.46 = 8,437.24/x
  3. Step 3: Cross multiply
    15,510.70x = 21,404.46 × 8,437.24
  4. Step 4: Simplify right side
    15,510.70x = 180,594,566.09
  5. Step 5: Solve for x
    x = 180,594,566.09/15,510.70
  6. Step 6: Final answer
    x = 11,643.22

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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.