Home / 13,547.69-18,695.88-7,579.35

Finding the Fourth Proportional to 13,547.69, 18,695.88 and 7,579.35

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Solution

The fourth proportional to 13,547.69, 18,695.88 and 7,579.35 is: 10,459.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.69 : 18,695.88 = 7,579.35 : x
  2. Step 2: Convert to fraction form
    13,547.69/18,695.88 = 7,579.35/x
  3. Step 3: Cross multiply
    13,547.69x = 18,695.88 × 7,579.35
  4. Step 4: Simplify right side
    13,547.69x = 141,702,618.08
  5. Step 5: Solve for x
    x = 141,702,618.08/13,547.69
  6. Step 6: Final answer
    x = 10,459.54

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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.