Home / 14,547.90-20,075.12-8,579.28

Finding the Fourth Proportional to 14,547.90, 20,075.12 and 8,579.28

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Solution

The fourth proportional to 14,547.90, 20,075.12 and 8,579.28 is: 11,838.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,547.90 : 20,075.12 = 8,579.28 : x
  2. Step 2: Convert to fraction form
    14,547.90/20,075.12 = 8,579.28/x
  3. Step 3: Cross multiply
    14,547.90x = 20,075.12 × 8,579.28
  4. Step 4: Simplify right side
    14,547.90x = 172,230,075.51
  5. Step 5: Solve for x
    x = 172,230,075.51/14,547.90
  6. Step 6: Final answer
    x = 11,838.83

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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.