Home / 10,886.42-15,031.76-8,364.53

Finding the Fourth Proportional to 10,886.42, 15,031.76 and 8,364.53

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Solution

The fourth proportional to 10,886.42, 15,031.76 and 8,364.53 is: 11,549.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,886.42 : 15,031.76 = 8,364.53 : x
  2. Step 2: Convert to fraction form
    10,886.42/15,031.76 = 8,364.53/x
  3. Step 3: Cross multiply
    10,886.42x = 15,031.76 × 8,364.53
  4. Step 4: Simplify right side
    10,886.42x = 125,733,603.23
  5. Step 5: Solve for x
    x = 125,733,603.23/10,886.42
  6. Step 6: Final answer
    x = 11,549.58

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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.