Home / 15,303.42-21,118.98-8,933.76

Finding the Fourth Proportional to 15,303.42, 21,118.98 and 8,933.76

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Solution

The fourth proportional to 15,303.42, 21,118.98 and 8,933.76 is: 12,328.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,303.42 : 21,118.98 = 8,933.76 : x
  2. Step 2: Convert to fraction form
    15,303.42/21,118.98 = 8,933.76/x
  3. Step 3: Cross multiply
    15,303.42x = 21,118.98 × 8,933.76
  4. Step 4: Simplify right side
    15,303.42x = 188,671,898.76
  5. Step 5: Solve for x
    x = 188,671,898.76/15,303.42
  6. Step 6: Final answer
    x = 12,328.74

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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.