Home / 15,289.23-21,099.86-8,913.52

Finding the Fourth Proportional to 15,289.23, 21,099.86 and 8,913.52

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Solution

The fourth proportional to 15,289.23, 21,099.86 and 8,913.52 is: 12,301.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,289.23 : 21,099.86 = 8,913.52 : x
  2. Step 2: Convert to fraction form
    15,289.23/21,099.86 = 8,913.52/x
  3. Step 3: Cross multiply
    15,289.23x = 21,099.86 × 8,913.52
  4. Step 4: Simplify right side
    15,289.23x = 188,074,024.11
  5. Step 5: Solve for x
    x = 188,074,024.11/15,289.23
  6. Step 6: Final answer
    x = 12,301.08

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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.