Home / 10,916.64-15,070.69-7,350.35

Finding the Fourth Proportional to 10,916.64, 15,070.69 and 7,350.35

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Solution

The fourth proportional to 10,916.64, 15,070.69 and 7,350.35 is: 10,147.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.64 : 15,070.69 = 7,350.35 : x
  2. Step 2: Convert to fraction form
    10,916.64/15,070.69 = 7,350.35/x
  3. Step 3: Cross multiply
    10,916.64x = 15,070.69 × 7,350.35
  4. Step 4: Simplify right side
    10,916.64x = 110,774,770.89
  5. Step 5: Solve for x
    x = 110,774,770.89/10,916.64
  6. Step 6: Final answer
    x = 10,147.34

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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.