Home / 15,820.29-21,829.59-8,746.74

Finding the Fourth Proportional to 15,820.29, 21,829.59 and 8,746.74

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Solution

The fourth proportional to 15,820.29, 21,829.59 and 8,746.74 is: 12,069.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,820.29 : 21,829.59 = 8,746.74 : x
  2. Step 2: Convert to fraction form
    15,820.29/21,829.59 = 8,746.74/x
  3. Step 3: Cross multiply
    15,820.29x = 21,829.59 × 8,746.74
  4. Step 4: Simplify right side
    15,820.29x = 190,937,748.04
  5. Step 5: Solve for x
    x = 190,937,748.04/15,820.29
  6. Step 6: Final answer
    x = 12,069.17

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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.