Home / 15,830.34-21,845.87-9,543.93

Finding the Fourth Proportional to 15,830.34, 21,845.87 and 9,543.93

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Solution

The fourth proportional to 15,830.34, 21,845.87 and 9,543.93 is: 13,170.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,830.34 : 21,845.87 = 9,543.93 : x
  2. Step 2: Convert to fraction form
    15,830.34/21,845.87 = 9,543.93/x
  3. Step 3: Cross multiply
    15,830.34x = 21,845.87 × 9,543.93
  4. Step 4: Simplify right side
    15,830.34x = 208,495,454.07
  5. Step 5: Solve for x
    x = 208,495,454.07/15,830.34
  6. Step 6: Final answer
    x = 13,170.62

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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.