Home / 15,869.04-21,898.36-8,795.28

Finding the Fourth Proportional to 15,869.04, 21,898.36 and 8,795.28

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Solution

The fourth proportional to 15,869.04, 21,898.36 and 8,795.28 is: 12,136.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,869.04 : 21,898.36 = 8,795.28 : x
  2. Step 2: Convert to fraction form
    15,869.04/21,898.36 = 8,795.28/x
  3. Step 3: Cross multiply
    15,869.04x = 21,898.36 × 8,795.28
  4. Step 4: Simplify right side
    15,869.04x = 192,602,207.74
  5. Step 5: Solve for x
    x = 192,602,207.74/15,869.04
  6. Step 6: Final answer
    x = 12,136.98

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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.