Home / 15,810.84-21,829.14-10,148.04

Finding the Fourth Proportional to 15,810.84, 21,829.14 and 10,148.04

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Solution

The fourth proportional to 15,810.84, 21,829.14 and 10,148.04 is: 14,010.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,810.84 : 21,829.14 = 10,148.04 : x
  2. Step 2: Convert to fraction form
    15,810.84/21,829.14 = 10,148.04/x
  3. Step 3: Cross multiply
    15,810.84x = 21,829.14 × 10,148.04
  4. Step 4: Simplify right side
    15,810.84x = 221,522,985.89
  5. Step 5: Solve for x
    x = 221,522,985.89/15,810.84
  6. Step 6: Final answer
    x = 14,010.83

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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.