Home / 15,368.29-21,208.89-8,562.30

Finding the Fourth Proportional to 15,368.29, 21,208.89 and 8,562.30

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Solution

The fourth proportional to 15,368.29, 21,208.89 and 8,562.30 is: 11,816.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,368.29 : 21,208.89 = 8,562.30 : x
  2. Step 2: Convert to fraction form
    15,368.29/21,208.89 = 8,562.30/x
  3. Step 3: Cross multiply
    15,368.29x = 21,208.89 × 8,562.30
  4. Step 4: Simplify right side
    15,368.29x = 181,596,846.74
  5. Step 5: Solve for x
    x = 181,596,846.74/15,368.29
  6. Step 6: Final answer
    x = 11,816.34

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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.