Home / 10,870.64-15,001.44-6,394.34

Finding the Fourth Proportional to 10,870.64, 15,001.44 and 6,394.34

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Solution

The fourth proportional to 10,870.64, 15,001.44 and 6,394.34 is: 8,824.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,870.64 : 15,001.44 = 6,394.34 : x
  2. Step 2: Convert to fraction form
    10,870.64/15,001.44 = 6,394.34/x
  3. Step 3: Cross multiply
    10,870.64x = 15,001.44 × 6,394.34
  4. Step 4: Simplify right side
    10,870.64x = 95,924,307.85
  5. Step 5: Solve for x
    x = 95,924,307.85/10,870.64
  6. Step 6: Final answer
    x = 8,824.16

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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.