Home / 14,457.45-21,690.54-6,864.56

Finding the Fourth Proportional to 14,457.45, 21,690.54 and 6,864.56

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Solution

The fourth proportional to 14,457.45, 21,690.54 and 6,864.56 is: 10,298.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,457.45 : 21,690.54 = 6,864.56 : x
  2. Step 2: Convert to fraction form
    14,457.45/21,690.54 = 6,864.56/x
  3. Step 3: Cross multiply
    14,457.45x = 21,690.54 × 6,864.56
  4. Step 4: Simplify right side
    14,457.45x = 148,896,013.26
  5. Step 5: Solve for x
    x = 148,896,013.26/14,457.45
  6. Step 6: Final answer
    x = 10,298.91

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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.