Home / 10,156.96-13,985.45-8,890.93

Finding the Fourth Proportional to 10,156.96, 13,985.45 and 8,890.93

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Solution

The fourth proportional to 10,156.96, 13,985.45 and 8,890.93 is: 12,242.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,156.96 : 13,985.45 = 8,890.93 : x
  2. Step 2: Convert to fraction form
    10,156.96/13,985.45 = 8,890.93/x
  3. Step 3: Cross multiply
    10,156.96x = 13,985.45 × 8,890.93
  4. Step 4: Simplify right side
    10,156.96x = 124,343,577.55
  5. Step 5: Solve for x
    x = 124,343,577.55/10,156.96
  6. Step 6: Final answer
    x = 12,242.21

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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.