Home / 15,869.02-23,795.21-5,478.30

Finding the Fourth Proportional to 15,869.02, 23,795.21 and 5,478.30

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Solution

The fourth proportional to 15,869.02, 23,795.21 and 5,478.30 is: 8,214.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,869.02 : 23,795.21 = 5,478.30 : x
  2. Step 2: Convert to fraction form
    15,869.02/23,795.21 = 5,478.30/x
  3. Step 3: Cross multiply
    15,869.02x = 23,795.21 × 5,478.30
  4. Step 4: Simplify right side
    15,869.02x = 130,357,298.94
  5. Step 5: Solve for x
    x = 130,357,298.94/15,869.02
  6. Step 6: Final answer
    x = 8,214.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.