Home / 14,070.65-21,109.71-4,210.02

Finding the Fourth Proportional to 14,070.65, 21,109.71 and 4,210.02

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Solution

The fourth proportional to 14,070.65, 21,109.71 and 4,210.02 is: 6,316.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,070.65 : 21,109.71 = 4,210.02 : x
  2. Step 2: Convert to fraction form
    14,070.65/21,109.71 = 4,210.02/x
  3. Step 3: Cross multiply
    14,070.65x = 21,109.71 × 4,210.02
  4. Step 4: Simplify right side
    14,070.65x = 88,872,301.29
  5. Step 5: Solve for x
    x = 88,872,301.29/14,070.65
  6. Step 6: Final answer
    x = 6,316.15

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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.