Home / 7,547.04-10,415.26-4,189.90

Finding the Fourth Proportional to 7,547.04, 10,415.26 and 4,189.90

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Solution

The fourth proportional to 7,547.04, 10,415.26 and 4,189.90 is: 5,782.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,547.04 : 10,415.26 = 4,189.90 : x
  2. Step 2: Convert to fraction form
    7,547.04/10,415.26 = 4,189.90/x
  3. Step 3: Cross multiply
    7,547.04x = 10,415.26 × 4,189.90
  4. Step 4: Simplify right side
    7,547.04x = 43,638,897.87
  5. Step 5: Solve for x
    x = 43,638,897.87/7,547.04
  6. Step 6: Final answer
    x = 5,782.25

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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.