Home / 14,328.04-19,772.76-8,040.40

Finding the Fourth Proportional to 14,328.04, 19,772.76 and 8,040.40

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Solution

The fourth proportional to 14,328.04, 19,772.76 and 8,040.40 is: 11,095.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,328.04 : 19,772.76 = 8,040.40 : x
  2. Step 2: Convert to fraction form
    14,328.04/19,772.76 = 8,040.40/x
  3. Step 3: Cross multiply
    14,328.04x = 19,772.76 × 8,040.40
  4. Step 4: Simplify right side
    14,328.04x = 158,980,899.50
  5. Step 5: Solve for x
    x = 158,980,899.50/14,328.04
  6. Step 6: Final answer
    x = 11,095.79

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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.